introduction to rad’s cellular backhauling solutions

Stay ahead with RAD Training

Presented by:

Ehud Malik

Product Line Management

Introduction to RAD’s Cellular Backhauling Solutions

Cellular Backhauling Solutions for TS2009 Slide 2

Agenda

• Cellular Backhauling introduction

• Applications

• Main features

• Summary


The Mobile Backhaul Segment

Access Network

Regional Backbone

BSC/RNC/aGW

National Backbone

MSC

BTS/NodeB/

IP-NodeB/eNB

Cellular BackhaulACE-3000 Family

Mobile backhaul encompasses the transport networkbetween cell sites (base stations) and associatedcontroller or gateway sites.


Mobile Backhaul Challenges

Evolution of the 3.5G HDPA+ and 4G LTE Broadband data services introduce new challenges to the mobile backhaul

400 Mbps

2009 2010 2011

100 Mbps

70 Mbps

2012

Capacity/Latency

HSPA, PH2

(Rel-6)

LTERel-9

LTERel-10

40msec

10msec

Latency

Capacity

HSPA, PH3

(Rel-7)

HSPA, (Rel-8)

LTERel-8 HSPA,

(Rel-9)


Smooth Mobile Backhaul Evolution

Aggregation SiteGatewayCell Site/Hub Site

Gateway

aGW/RNC/BSC

BTS/Node B/eNB

SONET/SDH/ATM

Tra

dition

al

Cell Site/Hub SiteGateway

aGW/RNC/BSC

BTS/Node B/eNB

Hyb

rid

Aggregation SiteGateway

SONET/SDH/ATM

Pa

cket

Aggregation SiteGatewayCell Site/Hub Site

Gateway

aGW/RNC/BSC

BTS/Node B/eNB


Go To Market Definitions

• Target Customers

• Mobile operators

• Owning their own backhaul infrastructure

• Leasing backhaul services

• Transport providers

• providing backhaul transport service to mobile operators

• Main Target Applications

• 2G and 3G services over ATM backhaul

• 2G/3G and 4G services over PSN backhaul

• Microwave backhauling from the Hub Site

• Backhauling over any media -- Copper, Fiber or Microwave

• Value Proposition

• Decoupling capacity from cost – reduce backhauling cost per Mbps

• Resolve the backhaul bottleneck

• Step by step migration toward all-IP

• Transparent backhauling of GSM/UMTS/Wimax and LTE over packet based network


ACE-3x00 Cellular Backhauling Network Architecture

BTS/Node BIP Node-B

or eNB

BTS/Node BIP-Nonde B/eNB

BTS/Node BIP-Nonde B/eNB

First mile Backhauling

Segment

First mile Backhauling

Segment

Cell Site Hub Site Aggregation Site

BSC/RNC/IP RNC/aGW

ACE-32xxACE-310x

LA-130 ACE-340x

ACE-340xACE-3600

3rd party solution

Middle mile Backhauling

Segment

Middle mile Backhauling

Segment

BTS/Node BIP-Node-B/eNB


Market Trend: Cellular Operators move the Tradtional RAN to IP-RAN, Why?

• Backhaul of BSS/UTRAN is one of the major contributors to the

high cost of building out and running a mobile network.

• Cellular operators have massive deployment of PDH/SDH traffic,

most reliable solution for GSM and R’99 UMTS backhaul.

• PDH/SDH Mobile Backhaul solution does not seem flexible

enough to efficiently deliver statistical/bursty traffic.

Cellular operators would like to maximize revenues and margins by converging mobile flows over a unified Packet Switched Network infrastructure in order to reduce both

Capex and Opex by using PW.


What is PW?

• Pseudowire is a mechanism that emulates the essential attributes of a

telecommunications service over a packet-switched network

• TDM leased line, ATM or ETH

• It defines a way to packetize and encapsulate data and create a logical link

between two network entities

• Pseudowire technology is an enabler for the migration scenarios, with circuit

and service emulation of legacy services over packet networks

CLE/CPEPWE3 #1

PWE3 #2

CLE/CPE

TDMATM

HDLC, ETH etc.

Service Pseudowire Emulated Service Service

Tunnel TDMATM

HDLC, ETH etc.

PSN


Leveraging Cellular Backhauling Over Copper (xDSL)

Benefits:

• Using any flavor of DSL technology for cellular backhauling

• Simultaneously supports ADSL2+ for HSPA and SHDSL.bis for R99 and GSM or data services with M-pair/IMA/EFM Bonding technologies

• Full synchronization solution by using ACR or 1588v2 or NTR

• Interoperability with Cisco 76xx ASG and Cisco management system ‘ANA’

ACE-3105

63 E1/T1

BSC

GbE

RNC/IP-RNC

STM-1/OC-3c

GbEPSNETH/IP/MPLS

Network

BTS/Node B

n x E1/T1TDM/ATM

Ch. STM-1/OC-3c

GbEBTS/Node B

n x E1/T1TDM/ATM

ACE-3220Aggregation/

Hub Site Gateway

n x FE

IP-Node-B PW

ADSL2+ for HSxPA Services

n x SHDSL for R99 and GSM Data


2G/3G/4G Cellular Backhauling Over Fiber

eNB

ACE-3220

n E1/T1 TDM

BSC

RNC

GbE

n x E1/T1TDM/ATM IMA PSN

ETH/IP/MPLSNetworkBTS/NodeB

Ch. STM-1/OC-3

n x FEn x STM-1/OC-3c

GbE

AggregationGateway

IP Node B

ASN GW

n x GbE

PW

3’rd party vendorMultiservice device

Benefits:

• Backhauling all kind of cellular BSS technologies and vendors over GbE

• Emulating TDM/ATM/ETH over ETH/IP/MPLS

• Co-location of ETH Node-B by using

• ETH PW

• Layer 2 Bridging

• Full synchronization support by using 1588v2 and Sync-E

• Interoperability with Cisco 76xx ASG and Cisco management system ‘ANA’

Cell-Site GatewayACE-3220

GbE


Hub SiteBSC

IP RNC

GbE

2G BTS

n x E1/T1 TDM orCh. STM-1/OC-3

ETH

n x E1/T1TDM

n x E1/T1IMA

RNCSTM-1/OC-3cATM

Cell Site

AGG Site

‘1st mile’ ‘middle mile’

PW

ETH MW

BTS/Node B

PW

MW links

3G Node B

Wireless Cellular Backhaul PW over ETH MW

Benefits

• Offers smooth migration for Ethernet MW

• Full end to end OAM solution

• Co location of mixture traffic over ETH MW

GbE PSNETH/IP/MPLS

ACE-3220

3G IPNode B

FE

n x E1/T1TDM

ACE-32203’rd party vendor

Multiservice device


Wireless Cellular Backhaul Grooming PDH MW at the Hub location

Benefits

• Smooth migration to IP/MPLS networks while using TDM MW legacy equipment

• Full end to end OAM solution

• Co location of mixture traffic over TDM MW

• Flexible Synchronization support

2G BTS

n x E1/T1TDM

n x E1/T1IMA

3G Node B

Hub SiteBSC

IP RNC

n x E1/T1 TDM orCh. STM-1/OC-3

ETH

RNCSTM-1/OC-3cATM

Cell Site

AGG Site

‘1st mile’ ‘middle mile’

PW

TDM MW

BTS/Node B

PW

MW links

63 x E1/T1or Ch. STM-1/OC-3c


STM1/OC3

STM1/OC3

SONET/SDHNetwork

ACE-3400

GbEPSN

ETH/IP/MPLS

GbE


Smooth Migration Path

All services transport over PW

over xDSL backhaul

All services transport over Fiber backhaul

E1/T1 TDM

E1/T1 ATM

FE

ADSL2+

SHDSL.bis

ATMATM

ATM ADSL/ATM SHDSL/EFM-SHDSL

PW

ETH/IP/MPLS

IP DSLAM

GbE

GbE

PW

ETH/IP/MPLS

GbE

PSNPSN

ASG

ASG

ACE-3220

E1/T1 TDM

E1/T1 ATM

FE

ACE-3220


Why emulate the ETH-Node over PW?

• ETH PW allows the ACE-3000 to backhaul ETH/IP traffic coming from NodeBs toward the RNC over IP/MPLS networks

• ETH PW on the ACE-3000 can be used together with TDM and ATM PW mechanisms in cases where 2G BTS and 3G Node are collocated on the same site

Benefits:

• Unified ATM/TDM/ETH services over IP/MPLS

• Automatic provisioning to all Cellular Backhaul services

• TDM/ATM/ETH OAM support over IP/MPLS networks

ETH

ETH

IP Node B

ACE-3220/3105RNC

PW (ETH,ATM,TDM)

PacketSwitched Network

n x E1/T1

ACE-3400

STM-1/OC-3c

Node B/BTSPW

(ETH,ATM,TDM)


OAM


Multiple Synchronization Options

• Synchronization via a TDM link for clock transfer

• Timing over packet:

• Adaptive clock distribution and recovery

• PTPv2 (IEEE 1588-2008) ordinary clock (master + slave)

• Synchronous Ethernet

• NTR over SHDSL

TDM

ATM IMA

TDM

ATM

2G BSC

3G RNC

ACE-3000

ACE-3220

eNodeB

ETH

ACE-3220

NodeB

SHDSL

ATM IMA

IP DSLAM

TDM link

Sync-E

NTR

FE/GbEIP Node B ETX

ETHIEEE 1588-2008

S1 (ETH)

aGWSONET/SDH

Network

PacketSwitchedNetwork


Cellular backhaul Solutions Summary

Cellular backhauling needs and requirements:

• Higher BW

• Migration to IP/MPLS networks

• Cell Site synchronization

• Saving Mobile Backhauling cost

Leveraging Backhauling over diverse kind of infrastructure

• Copper (xDSL)

• Fiber

• Wireless

Main Features and Benefits

• High Accuracy timing

• Multiservice backhauling support

• Future proof solution (smooth migration)

• Cutting Opex and Capex

introduction to rad’s cellular backhauling solutions

Documents